History

cam900 5034b3623d Take 2		2022-09-17 00:16:20 +09:00
..
k005289.cpp	Take 2	2022-09-17 00:16:20 +09:00
k005289.hpp	Take 2	2022-09-17 00:16:20 +09:00
README.md	Take 2	2022-09-17 00:16:20 +09:00

README.md

Konami K005289

Summary

2 12 bit timer
Address generator

Source code

k005289.hpp: Base header
- k005289.cpp: Source emulation core

Description

This chip is used at infamous Konami Bubble System, for part of Wavetable sound generator. But seriously, It is just to 2 internal 12 bit timer and address generators, rather than sound generator.

Everything except for internal counter and address are done by external logic, the chip is only has external address, frequency registers and its update pins.

Frequency calculation

Input clock / (4096 - Pitch input)